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SPEEDAIRE

SPEEDAIRE SMC D-B54L Reed Switch 24VDC 9.8 ft

SKU CH-9DKA-NZ0E9

A 24 V DC reed switch with a 9.8 ft lead for 20 to 63 mm bore cylinders, normally open with LED indication and a 14 to 140 °F operating range

  • Operates reliably from 14 to 140 °F
  • Fits cylinder bores from 20 to 63 mm
  • 8 ft lead allows flexible mounting
  • LED indicator shows switch status at a glance
  • Two-wire normally open design simplifies wiring

SMC D-B54L Reed Switch 24VDC

The SMC D-B54L is a pre-wired reed switch designed for pneumatic cylinder position sensing. It operates at 24V DC with a normally open function and suits bore diameters from 20 to 63mm. The unit includes a 9.8 ft lead with two wires for direct connection. An LED display provides visual indication of the switch state during operation.

Sustained load behaviour

The switch handles a switching current range of 5 to 50mA within a temperature span of 14 to 140 degrees F. Its composite enclosure protects the internal contacts in typical industrial environments. The normally open contact closes reliably when the magnetic piston passes the sensor position. Continuous operation within these electrical and thermal limits maintains consistent signal output.

Upgrade context

This reed switch replaces worn or damaged sensors on compatible SMC actuators with bore sizes between 20 and 63mm. The 9.8 ft lead length suits installations where the controller is mounted at a distance from the cylinder. It is not suited for applications requiring higher switching currents, different voltage levels, or normally closed logic. Buyers needing alternative cable lengths or connector types should verify compatibility before purchase.

Highlights

  • Operates reliably from 14 to 140 °F
  • Fits cylinder bores from 20 to 63 mm
  • 8 ft lead allows flexible mounting
  • LED indicator shows switch status at a glance
  • Two-wire normally open design simplifies wiring

Specifications

BrandSMC

Questions about this item

How much heat can the SMC D-B54L reed switch handle during continuous operation?

The switch operates from 14 to 140 degrees Fahrenheit, so it tolerates typical compressor environments without overheating.

What cylinder bore sizes does this reed switch fit?

It mounts on cylinders with bore diameters from 20 to 63 mm, covering many common pneumatic actuators.

Will the 9.8 ft lead reach my existing 24 V DC control box without splicing?

The 9.8 ft prewired lead connects directly to a 24 V DC circuit, eliminating the need for extra wire in most panel layouts.

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